Crash when linking an evaluated object to a collection #100133

New Issue

Ash · 2022-08-02T10:50:43+02:00

Ash commented

2022-08-02 10:50:43 +02:00

System Information
Operating system: Linux 5.18.7-200.fc36.x86_64
Graphics card: NVIDIA GeForce RTX 2070

Blender Version
Broken: 3.2.0 & 3.2.1
Worked: 2.92 worked (does not crash) but does not give expected results - Evaluated object does not include modifiers in mesh

Short description of error
With an object with any modifier, create an evaluated object of it, link new object to a collection, delete the modifier.

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
Start new .blend with default cube
Add any modifier to cube
Run:

dg = bpy.context.evaluated_depsgraph_get()
eval_obj = bpy.data.objects['Cube'].evaluated_get(dg)
bpy.data.collections['Defaults'].objects.link(eval_obj)
eval_obj.modifiers.clear()

crash.txt blender.crash.txt

**System Information** Operating system: Linux 5.18.7-200.fc36.x86_64 Graphics card: NVIDIA GeForce RTX 2070 **Blender Version** Broken: 3.2.0 & 3.2.1 Worked: 2.92 worked (does not crash) but does not give expected results - Evaluated object does not include modifiers in mesh **Short description of error** With an object with any modifier, create an evaluated object of it, link new object to a collection, delete the modifier. **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible). Start new .blend with default cube Add any modifier to cube Run: ``` dg = bpy.context.evaluated_depsgraph_get() eval_obj = bpy.data.objects['Cube'].evaluated_get(dg) bpy.data.collections['Defaults'].objects.link(eval_obj) eval_obj.modifiers.clear() ``` crash.txt [blender.crash.txt](https://archive.blender.org/developer/F13330936/blender.crash.txt)

Ash commented

2022-08-02 10:50:43 +02:00

Added subscriber: @Psyonic

Ash changed title from ~~Core dump deleting modifier on evaluated object~~ to Core dump when deleting modifier on evaluated object

2022-08-02 10:50:59 +02:00

Omar Emara commented

2022-08-02 11:43:12 +02:00

Added subscriber: @OmarEmaraDev

Omar Emara commented

2022-08-02 11:43:12 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Omar Emara commented

2022-08-02 11:43:12 +02:00

I don't think linking an evaluated object should be possible, which is likely the source of the problem here. So maybe the RNA method should check for that or something.

This crash happen after linking, without the modifiers clear.

* thread #1, name = 'blender', stop reason = signal SIGABRT
  * frame #0: 0x00007ffff7c8e36c libc.so.6`___lldb_unnamed_symbol3484 + 284
    frame #1: 0x00007ffff7c3e838 libc.so.6`raise + 24
    frame #2: 0x00007ffff7c28535 libc.so.6`abort + 207
    frame #3: 0x000000000eabd109 blender`_BLI_assert_abort at BLI_assert.c:46:3
    frame #4: 0x0000000000de92a1 blender`blender::deg::DepsgraphNodeBuilder::add_id_node(this=0x00007fffdb559f00, id=0x00007fffeb825e08) at deg_builder_nodes.cc:150:3
    frame #5: 0x0000000000deb170 blender`blender::deg::DepsgraphNodeBuilder::build_object(this=0x00007fffdb559f00, base_index=1, object=0x00007fffeb825e08, linked_state=DEG_ID_LINKED_DIRECTLY, is_visible=true) at deg_builder_nodes.cc:750:21
    frame #6: 0x0000000000e0594f blender`blender::deg::DepsgraphNodeBuilder::build_view_layer(this=0x00007fffdb559f00, scene=0x00007fffeb87a008, view_layer=0x00007fffeb7f0b88, linked_state=DEG_ID_LINKED_DIRECTLY) at deg_builder_nodes_view_layer.cc:104:5
    frame #7: 0x0000000000e30f4e blender`blender::deg::ViewLayerBuilderPipeline::build_nodes(this=0x00007fffffffe4a8, node_builder=0x00007fffdb559f00) at pipeline_view_layer.cc:19:16
    frame #8: 0x0000000000e2bcd5 blender`blender::deg::AbstractBuilderPipeline::build_step_nodes(this=0x00007fffffffe4a8) at pipeline.cc:56:3
    frame #9: 0x0000000000e2bc24 blender`blender::deg::AbstractBuilderPipeline::build(this=0x00007fffffffe4a8) at pipeline.cc:35:3
    frame #10: 0x0000000000e5c3f5 blender`::DEG_graph_build_from_view_layer(graph=0x00007fffdadf4308) at depsgraph_build.cc:242:11
    frame #11: 0x0000000000e5c843 blender`::DEG_graph_relations_update(graph=0x00007fffdadf4308) at depsgraph_build.cc:293:3
    frame #12: 0x000000000089cf5e blender`scene_graph_update_tagged(depsgraph=0x00007fffdadf4308, bmain=0x00007fffeb74b108, only_if_tagged=false) at scene.cc:2589:5
    frame #13: 0x000000000089ceaf blender`::BKE_scene_graph_update_tagged(depsgraph=0x00007fffdadf4308, bmain=0x00007fffeb74b108) at scene.cc:2645:3
    frame #14: 0x0000000000a2bf14 blender`::wm_event_do_depsgraph(C=0x00007ffff3f81388, is_after_open_file=false) at wm_event_system.cc:414:5
    frame #15: 0x0000000000a2c024 blender`::wm_event_do_refresh_wm_and_depsgraph(C=0x00007ffff3f81388) at wm_event_system.cc:436:3
    frame #16: 0x0000000000a2ca7e blender`::wm_event_do_notifiers(C=0x00007ffff3f81388) at wm_event_system.cc:646:3
    frame #17: 0x0000000000a22480 blender`WM_main(C=0x00007ffff3f81388) at wm.c:634:5
    frame #18: 0x0000000000230fe9 blender`main(argc=1, argv=0x00007fffffffe9e8) at creator.c:546:5
    frame #19: 0x00007ffff7c29290 libc.so.6`___lldb_unnamed_symbol3123 + 128
    frame #20: 0x00007ffff7c2934a libc.so.6`__libc_start_main + 138
    frame #21: 0x0000000000230ba5 blender`_start at start.S:115

I don't think linking an evaluated object should be possible, which is likely the source of the problem here. So maybe the RNA method should check for that or something. This crash happen after linking, without the modifiers clear. ``` * thread #1, name = 'blender', stop reason = signal SIGABRT * frame #0: 0x00007ffff7c8e36c libc.so.6`___lldb_unnamed_symbol3484 + 284 frame #1: 0x00007ffff7c3e838 libc.so.6`raise + 24 frame #2: 0x00007ffff7c28535 libc.so.6`abort + 207 frame #3: 0x000000000eabd109 blender`_BLI_assert_abort at BLI_assert.c:46:3 frame #4: 0x0000000000de92a1 blender`blender::deg::DepsgraphNodeBuilder::add_id_node(this=0x00007fffdb559f00, id=0x00007fffeb825e08) at deg_builder_nodes.cc:150:3 frame #5: 0x0000000000deb170 blender`blender::deg::DepsgraphNodeBuilder::build_object(this=0x00007fffdb559f00, base_index=1, object=0x00007fffeb825e08, linked_state=DEG_ID_LINKED_DIRECTLY, is_visible=true) at deg_builder_nodes.cc:750:21 frame #6: 0x0000000000e0594f blender`blender::deg::DepsgraphNodeBuilder::build_view_layer(this=0x00007fffdb559f00, scene=0x00007fffeb87a008, view_layer=0x00007fffeb7f0b88, linked_state=DEG_ID_LINKED_DIRECTLY) at deg_builder_nodes_view_layer.cc:104:5 frame #7: 0x0000000000e30f4e blender`blender::deg::ViewLayerBuilderPipeline::build_nodes(this=0x00007fffffffe4a8, node_builder=0x00007fffdb559f00) at pipeline_view_layer.cc:19:16 frame #8: 0x0000000000e2bcd5 blender`blender::deg::AbstractBuilderPipeline::build_step_nodes(this=0x00007fffffffe4a8) at pipeline.cc:56:3 frame #9: 0x0000000000e2bc24 blender`blender::deg::AbstractBuilderPipeline::build(this=0x00007fffffffe4a8) at pipeline.cc:35:3 frame #10: 0x0000000000e5c3f5 blender`::DEG_graph_build_from_view_layer(graph=0x00007fffdadf4308) at depsgraph_build.cc:242:11 frame #11: 0x0000000000e5c843 blender`::DEG_graph_relations_update(graph=0x00007fffdadf4308) at depsgraph_build.cc:293:3 frame #12: 0x000000000089cf5e blender`scene_graph_update_tagged(depsgraph=0x00007fffdadf4308, bmain=0x00007fffeb74b108, only_if_tagged=false) at scene.cc:2589:5 frame #13: 0x000000000089ceaf blender`::BKE_scene_graph_update_tagged(depsgraph=0x00007fffdadf4308, bmain=0x00007fffeb74b108) at scene.cc:2645:3 frame #14: 0x0000000000a2bf14 blender`::wm_event_do_depsgraph(C=0x00007ffff3f81388, is_after_open_file=false) at wm_event_system.cc:414:5 frame #15: 0x0000000000a2c024 blender`::wm_event_do_refresh_wm_and_depsgraph(C=0x00007ffff3f81388) at wm_event_system.cc:436:3 frame #16: 0x0000000000a2ca7e blender`::wm_event_do_notifiers(C=0x00007ffff3f81388) at wm_event_system.cc:646:3 frame #17: 0x0000000000a22480 blender`WM_main(C=0x00007ffff3f81388) at wm.c:634:5 frame #18: 0x0000000000230fe9 blender`main(argc=1, argv=0x00007fffffffe9e8) at creator.c:546:5 frame #19: 0x00007ffff7c29290 libc.so.6`___lldb_unnamed_symbol3123 + 128 frame #20: 0x00007ffff7c2934a libc.so.6`__libc_start_main + 138 frame #21: 0x0000000000230ba5 blender`_start at start.S:115 ```

Omar Emara changed title from ~~Core dump when deleting modifier on evaluated object~~ to Crash when linking an evaluated object to a collection

2022-08-02 11:43:52 +02:00

Bastien Montagne commented

2022-08-02 12:11:44 +02:00

Added subscriber: @mont29